Merax Metal Bunk Bed with Storage Shelf, Twin Over Twin Bunk Bed with Ladder, Safety Guard Rails Twin Over Twin Metal Bunk Bed with shelf and Slatted Support No Box Spring NeededModern and simple design, Due to the simple and modern design, our beds can be used almost anywhere. They can be easily combined with other furniture and fit into almost every room.Since the bunk bed offers a lot of storage space and space, it is perfect for student apartments or children's rooms.Quality Metal frame ensure stability and durability for long-term use.Slat set included, so box springs are not required. Dimension: Top bed: 39.2'' x 75'' Bottom bed: 39.2'' x 75'' Total height: 66.7'' Numbers of slat: 21/21 (upper/bottom) Recommended age> 6 years old Feature: Two twin size beds Made of high-quality steel No box spring needed Recommended Mattress Thickness-- Upper bed: 4-6 in; Bottom bed: 6-8 in Weight Capacity-- Upper bed:250 lbs; Bottom bed:350 lbs Large Storage Space-- There is a shelf at the bottom of the bed for easier storage and less clutter in the room Full-length Guardrails Built-in Ladder Storage Shelf Separate into 2 Twin Beds With a practical design, this versatile bunk bed can be separated into two twin beds to meet your different needs. Comes with pipe plugs that can be installed on the support leg of the bed for protection